We look at the division of 61070265 by 669 
The aim is to understand the frequency of 669 in 61070265.

Step 1:
669 can be fit into 6 0 times, resulting in a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Grab the next digit (1) from the dividend, add it to 6, then carry on: 61 / 669

On to step 2:
61 divided by 669 is 0 with a remainder of 61.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 61 leaves us with 61.
Append the next digit (0) from the dividend to 61 and continue with: 610 / 669

Going ahead to step 3:
When dividing 610 by 669, we get 0 with a remainder of 610.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 610, we end up with 610.
Append the next digit (7) from the dividend to 610 and continue with: 6107 / 669

Moving on to step 4:
If we divide 6107 by 669, we get 9 and a remainder of 86.
Record the quotient 9 as the next digit in the result. 
Result so far: 9.0
The remainder is 86 after subtracting 6021 from 6107.
Fetch the next digit (0) from the dividend, attach it to 86 and continue: 860 / 669

Moving on to step 5:
669 can be fit into 860 1 times, resulting in a remainder of 191.
Put 1 as the next digit of the answer. 
Result so far: 91.0
Deduct 669 from 860 and we're left with 191.
Take the next digit (2) from the dividend and append it to 191, then repeat: 1912 / 669

On to step 6:
The number 669 fits into 1912 2 times, leaving a remainder of 574.
Write down 2 as next digit of the result. 
Result so far: 912.0
Subtracting 1338 from 1912 leaves us with 574.
Grab the next digit (6) from the dividend, add it to 574, then carry on: 5746 / 669

Let's proceed to step 7:
If we divide 5746 by 669, we get 8 and a remainder of 394.
The number 8 becomes the next digit in our result. 
Result so far: 9128.0
Deduct 5352 from 5746 and we're left with 394.
Take the next digit (5) from the dividend and append it to 394, then repeat: 3945 / 669

Moving on to step 8:
If we divide 3945 by 669, we get 5 and a remainder of 600.
Record the quotient 5 as the next digit in the result. 
Result so far: 91285.0
Subtracting 3345 from 3945 leaves us with 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6000, and continue the process.

Let's proceed to step 9:
6000 divided by 669 is 8 with a remainder of 648.
Use 8 as the next digit of our solution. 
Result so far: 91285.8
Deduct 5352 from 6000 and we're left with 648.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6480, and continue the process.

On to step 10:
669 goes into 6480 9 times with a remainder of 459.
The number 9 becomes the next digit in our result. 
Result so far: 91285.89
Subtracting 6021 from 6480 leaves us with 459.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4590, and continue the process.

Let's proceed to step 11:
4590 divided by 669 is 6 with a remainder of 576.
Put 6 as the next digit of the answer. 
Result so far: 91285.896
Subtracting 4014 from 4590 leaves us with 576.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5760, and continue the process.

Going ahead to step 12:
669 goes into 5760 8 times with a remainder of 408.
The number 8 becomes the next digit in our result. 
Result so far: 91285.8968
Subtract 5352 from 5760 to get 408.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4080, and continue the process.

Advancing to step 13:
669 can be fit into 4080 6 times, resulting in a remainder of 66.
The number 6 becomes the next digit in our result. 
Result so far: 91285.89686
If we take 4014 away from 4080, we end up with 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Moving on to step 14:
669 can be fit into 660 0 times, resulting in a remainder of 660.
Use 0 as the next digit of our solution. 
Result so far: 91285.89686
If we subtract 0 from 660, we get 660.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6600, and continue the process.

Let's proceed to step 15:
When dividing 6600 by 669, we get 9 with a remainder of 579.
The number 9 becomes the next digit in our result. 
Result so far: 91285.8968609
If we subtract 6021 from 6600, we get 579.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5790, and continue the process.

On to step 16:
The number 669 fits into 5790 8 times, leaving a remainder of 438.
Record the quotient 8 as the next digit in the result. 
Result so far: 91285.89686098
Subtracting 5352 from 5790 leaves us with 438.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4380, and continue the process.

After the division, we end up with 91285.89686098 and a remainder of 4.38e-07.